2023-10-31

Purification method of high carbon graphite powder

High carbon graphite is a type of high carbon content carbon graphite powder with a carbon content of usually over 90%. There are many methods for purifying carbon graphite. The carbon graphite powder purification method can produce high-purity graphite powder with a carbon content greater than 99.9. Therefore, we have summarized various purification methods and techniques for high-purity graphite powder.The purification treatment methods for high carbon graphite powder are divided into two categories: chemical method purification and high-temperature purification. Chemical analysis purification problems include two types: alkaline acid method and alkaline acid method. Let's briefly introduce and study the purification methods of these three high-purity graphite powders:The process is now a feasible and mature method for contrast purification, and the purification method for high carbon graphite powder is basically the purification of technical personnel's acid: participating in graph

2023-04-24

Two ways of formation of scales graphite

The application of scales graphite in the industry is very widely used, and it plays a pivotal role. my country is one of the countries with rich scales in the world in the world. So how does the scales graphite ore formed? Two causes of biology, the following editors will explain the two formation methods of scales graphite for everyone:1. Bio -graphite biological causesBiological causes refer to the scales graphite directly from organic matter, commonly in marble, sliced rocks, or hemp rocks. Coal seams or carbon -containing sedimentary rocks can form scales graphite. It is the metamorphic mineral of graphite, which is made of organic or charcoal.Second, the non -biological cause of graphiteNon -biological causes refer to the reducing carbon out of CO and CO2. In the contact zone between magma rocks and limestone, scales are often produced. This is due to the decomposition of carbon dioxide by limestone and degenerate. The formation of mineral beds must concentrate and have suitable

2023-10-08

Graphite material properties

Graphite materials are mainly composed of polycrystalline graphite and belong to inorganic non-metallic materials. However, they are called semi metals due to their excellent thermal and electrical conductivity. Graphite has higher thermal and electrical conductivity than certain metals, and also has a much lower coefficient of thermal expansion, high melting point, and chemical stability than metals. This makes it of great value in engineering applications. Graphite has good corrosion resistance and does not react with any organic compoundsGraphite is another high-temperature resistant material that does not melt at high temperatures. It also has good thermal shock resistance and excellent self-lubricating propertiesThe disadvantage of graphite is its poor seismic performance. It begins to oxidize at 500 ℃ in the atmosphere, and the oxidation rate increases with the increase of temperature

2023-07-27

Summary of the characteristics, distribution and purification process of scales graphite

The scale graphite is high -pressure metamorphic. After weathering, it is generally blue -gray, yellow -brown or gray -white. It is mostly produced in tingling rocks, sliced rocks, crystalline litter and silicon hacks. Symbiosis is complicated, mainly consisting of sheet -like crystalline carbon, accompanied by long -stones, Yingshi, Black Cloud Mother, Pymaline Mine, Magnetic Yellow Elephant Mine, Golden Stone and other miscellaneous minerals. The graphite in the ore is a chip -like or blade -shaped, and the black or steel gray is mainly existing between the long stones, the time, the transparency of the pyroxyl, and the permeability of the glitter. It has obvious directional arrangement and consistent with the layer. Scales graphite is mostly natural crystal graphite with a layered structure and looks like fish scales. It belongs to the hexagonal crystal system. The crystalline state is good, the particle size is 0.05 ~ 1.5 microns, the thickness of the thin piece is 0.02 ~ 0.05 mm,

2023-03-21

What is the purpose of expanding graphite

Adsorption agent of industrial oil.

The shortcomings and prevention of graphite mold heat treatment process

The difference between expanded graphite and ordinary graphene

Expanded graphite, also known as flexible graphite or vermicular graphite, is a new type of carbon material. Expanded graphite has many advantages, such as large specific surface area, high surface activity, good chemical stability, and high temperature resistance. The commonly used preparation process for expanded graphite is to use natural flake graphite as the material, which is first oxidized to form expandable graphite, and then expanded to form expanded graphite. Expanded graphite materials can instantly expand by 150-300 times in volume when exposed to high temperatures, changing from flaky to wormlike, resulting in a loose structure, porous and curved structure, expanded surface area, improved surface energy, and enhanced adsorption of flake graphite. Wormlike graphite can be self embedded between them, making the material have functions such as flame retardancy, sealing, and adsorption. It has wide applications in fields such as life, military, environmental protection, and c

2023-06-20

What are the characteristics of high-purity flake graphite

High purity flake graphite has good high-temperature resistance, conductivity, thermal conductivity, lubricity, and chemical stability. Graphite powder manufacturers are widely used in fields such as metallurgy, machinery, environmental protection, chemical industry, fire protection, electronics, medicine, military industry, aerospace, etc. It plays an increasingly important role in the national economy and is an indispensable non-metallic raw material for modern industrial and high-tech development. Trace impurities have a significant impact on the performance of graphite products. The higher the carbon content of high-purity flake graphite, the better its performance as a functional material.In order to analyze trace impurities in high-purity flake graphite, the sample is usually ashed or wet digested to remove carbon, the ash is dissolved in acid, and the impurity content in the solution is then determined. The ashing method does not require the use of ultrapure acids to dissolve a

2023-10-23

The production method of graphite bearings

Graphite bearings, due to their self-lubricating, high and low temperature resistance, corrosion resistance, and other characteristics, can meet the sealing requirements for strong corrosion, flammable, explosive, and radioactive media. Effectively solving the problems of "running, emitting, dripping, and leaking" in chemical equipment, it has a good effect on improving labor conditions, product quality, and productivity.Graphite bearings can be divided into rolling bearings and sliding bearings, and there are also different materials such as metal, non-metal, and composite materials. Graphite bearings are commonly used in sliding bearings, which are further divided into radial bearings and thrust bearings. The article mainly analyzes carbon graphite bearings, bronze graphite oil bearings, and embedded graphite bearings.The manufacturing method of graphite bearings is characterized in that it is achieved by the following technical solutions:1) . Model making: polystyrene foam plastic

2023-04-13

High pure graphite characteristics and application

High pure graphic refers to the carbon content of graphite greater than 99.99 %, and high pure graphite has the advantages of high strength, high density, high purity, good shock resistance, high temperature resistance, anti -oxidation, small resistance coefficient, corrosion resistance, and precision processing. It is an ideal inorganic non -metal material. It is used to process and make electric heating elements, electro -spark processing graphite, sintering molds, electronic tube anode, etc., which are widely used in the metallurgical industry's high -grade refractory materials and coatings Light industry's pencil core, carbon brush of electrical industry, electrode of the battery industry, and catalyst additives of the fertilizer industry, etc., high pure graphite can be produced, and can also produce graphite, graphite sealing materials and composite materials, graphite products, graphite reduction reduction reduction High -tech products such as additives have become an important